Because you like Radar O'Reilly in M*A*S*H

Jenny Flint is a devoted wife and daring crime fighter, which is pretty unconventional for a Victorian maid. See them in Doctor Who.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.

Ianto Jones' withdrawn nature conceals his emotional pain. See them in Torchwood.

Greg Lestrade is gruff, loyal, and quietly competent. See them in Sherlock.

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.

Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.

This android may not have emotions, but Lt. Commander Data's curiosity about humanity is endless. See them in Star Trek: The Next Generation.

There's more to this sweet, caring landlady than meets the eye. See them in Sherlock.

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.

A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.

Roman Roy is an entitled rich boy, but he's smarter than he seems. See them in Succession.